Atlantic mangrove fiddler crabs are found 200 miles north of their historic range, expanding due to warming ocean waters.

Add Yahoo as a preferred source to see more of our stories on Google. It's spawning season. That means you might start to spot blue land crabs around this time of year as the female crabs venture out ...

David Johnson: So in 2014, we were on a muddy bank in the marsh up here in Massachusetts, and I saw this small crab scuttle across the mud bank and pop into a hole. And so I dug out the crab, and it ...

Fiddler crabs are fascinating crustaceans with unique behavior, so no wonder they have found their way into our homes. These active little guys love spending time in the water and enjoy burrowing and ...